You really should want what guns were used to be distributed between the people that went in to the building and those staying outside with no discernible patterns to argue against an organized insurrection. All the guns being outside just indicates that it was strategy (say to overwhelm the outnumbered inside security with numbers, melee weapons, and chemical agents, while reserving firearms to deal with the potentially more numerous and better equipped relief that could be sent).

Now, I don't care one way or the other, because I am not arguing it was a particularly well-planned or organized insurrection, because incompetence is not a mitigating factor. But as well as keeping moving the goalposts because you seem unfamiliar with the basic facts, you also seem to be very bad at even picking positions to defend which make a coherent argument.